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About JSONLint?

JSONLint is a validator and reformatter for JSON, a lightweight data-interchange format. Copy and paste, directly type, or input a URL in the editor above and let JSONLint tidy and validate your messy JSON code.

Tips & Tricks

You can directly input a URL into the editor and JSONLint will scrape it for JSON and parse it.

You can provide JSON to lint in the URL if you link to JSONLint with the "json" parameter. Here's an example URL to test.

If you use a Windows computer you may end up with different results. This is possibly due to the way Windows handles newlines. Essentially, if you have just newline characters (\n) in your JSON and paste it into JSONLint from a Windows computer, it may validate it as valid erroneously since Windows may need a carriage return (\r) as well to detect newlines properly. As a solution, either use direct URL input, or make sure your content's newlines match the architecture your system expects!